In order to do so, all you need to do is download the McDonald's mobile app and purchase your order using Apple Pay.

You will receive a complimentary order of medium-sized French fries.

Big Macs and Oreo McFlurries, late nights out with friends, lazy Sunday afternoons — none of these are complete without a side of McDonald's fries. If you agree, you're in luck, because McDonald's is giving away free French fries this month.

If the thought of free fries doesn't get your heart racing, you can find other deals in the McDonald's app, too. Many of them are buy one, get one deals, but still, free is free, people. The deals seem to update often, but right now some of them include a buy one get one free Big Mac, a free medium McCafé with any purchase of $1 or more, free medium fries with a purchase of four buttermilk crispy tenders, and $2 off any signature crafted sandwich.